Year	US Dollars adjusted for inflation)
1991	8186.538
1992	6078.586
1993	4549.953
1994	3590.036
1995	3104.569
1996	3209.449
1997	3371.893
1998	3658.006
1999	3886.953
2000	4209.479
2001	4473.958
2002	4785.268
2003	5152.572
2004	5464.006
2005	6681.144
2006	8715.066
2007	10625.499
2008	11445.515
2009	12221.474
2010	12565.604
2011	12364.365
2012	12375.796
2013	12857.178
2014	12864.98
2015	12786.03
2016	12162.483
2017	12018.685
2018	12174.36
2019	12454.415
2020	12772.159
2021	13173.83
2022	13622.572